change the StringLiteral AST node to track all of the SourceLocations of

the various PPTokens that are pasted together to make it.  In the course
of working on this, I discovered ParseObjCStringLiteral which needs some
work.  I'll tackle it next.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64892 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 22 insertions, 6 deletions

diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index 0cd68ce3b8..81da44407b 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -39,20 +39,36 @@ double FloatingLiteral::getValueAsApproximateDouble() const {
 
 
 StringLiteral::StringLiteral(ASTContext& C, const char *strData,
-                             unsigned byteLength, bool Wide, QualType t,
-                             SourceLocation firstLoc,
-                             SourceLocation lastLoc) : 
-  Expr(StringLiteralClass, t) {
+                             unsigned byteLength, bool Wide, QualType Ty,
+                             SourceLocation Loc) : 
+    Expr(StringLiteralClass, Ty) {
   // OPTIMIZE: could allocate this appended to the StringLiteral.
   char *AStrData = new (C, 1) char[byteLength];
   memcpy(AStrData, strData, byteLength);
   StrData = AStrData;
   ByteLength = byteLength;
   IsWide = Wide;
-  firstTokLoc = firstLoc;
-  lastTokLoc = lastLoc;
+  TokLocs[0] = Loc;
+  NumConcatenated = 1;
 }
 
+StringLiteral::StringLiteral(ASTContext &C, const char *strData, 
+                             unsigned byteLength, bool Wide, QualType Ty,
+                             SourceLocation *Loc, unsigned NumStrs) : 
+    Expr(StringLiteralClass, Ty) {
+  // OPTIMIZE: could allocate this appended to the StringLiteral.
+  char *AStrData = new (C, 1) char[byteLength];
+  memcpy(AStrData, strData, byteLength);
+  StrData = AStrData;
+  ByteLength = byteLength;
+  IsWide = Wide;
+  TokLocs[0] = Loc[0];
+  NumConcatenated = NumStrs;
+  if (NumStrs != 1)
+    memcpy(&TokLocs[1], Loc+1, sizeof(SourceLocation)*(NumStrs-1));
+}
+
+
 void StringLiteral::Destroy(ASTContext &C) {
   C.Deallocate(const_cast<char*>(StrData));
   this->~StringLiteral();